Method of securing caps in cups with rolled edges



Feb. 23, 1932. g BARBlEm 1,846,670

METHOD OF SECURING CAPS IN CUPS WITH ROLLED EDGES Filed Sept. 21, 1928 wWW4 atented eb. 23, i932 CESABE BARBIJERI, OF NEW YORK, N. Y.,

ASSIGNQR, ,IBY MESNE ASSIGNMENTS, T0

VUR'IEX CUP CQMPANY, 01E CHICAGO, ILLINOIS, A. CORPORATION OF DELAWAREMETHOD OF SECURING US IN CUPS WITH ROLL EDGE$ Application filedSeptember 21, 1928. Serial No.30739t19.

Jln paperdrinking cups and the like which are constructed with straightdrinking edges,

it has been the practice to insert flanged paper caps within the cups toprotect the contents thereof and then deflect a margin of the cupinwardly and downwardly over the flange of the cap to lock the cap inposition. While this method is applicable for paper cups with straightedges it is not adaptable, however, for use in connection with papercups having outwardly deflected or rolled edges at the open end of thecup for the reason that if the curved or rolled edge were deflectedinwardly and downwardly over the margin of the cap the curved edge wouldbe completely ruined and could not afterward be adaptable to' provide arounded drinking edge for the cup.

To overcome the above mentioned difficulties in the capping of papercontainers or the like having rolled edges, this invention has beenconceived with the idea of providing an improved method whereby thecurved or rolled edges of paper containers may be suit ably indented atspaced intervals to project over the edge of a flange of a cap to holdthe cap locked in position over the contents of the cup. I

It is an object of this invention to provide an improved method wherebycontainers with rolled edges may be conveniently punched to provideretaining lugs adapted to seat over the flange of a cap to hold the caplocked in position within a container.

It is also an object of this invention to provide .a method whereby therolled rim of a container is adapted to be indented at spaced intervalsto provide a plurality of retaining lugs adapted to engage over theflange of a. cap for the container to hold the cap locked in positionbut permitting convenient removal of the cap by a proper deflection ofthe rolled margin of the cup.

It is an important object of this invention to provide an improvedmethod whereby the rolled drinking rims of paper containers and the likemay be simultaneously indented at a plurality of spaced points aroundthe drinking periphery of the cup to provide overhanging pro ectionsadapted to engage the rim of a cap to hold said cap seated in a lockedposition to close the open end of a container.

Other'and furtherimportant objects of this invention will be apparentfrom the disclosures in the drawings and specification.

This invention (in a preferred form) is illustrated in the drawings'andhereinafter morefully described;

On the drawings;

Figure 1 is a top plan view of a capped container constructed accordingto the method embodying the principles of this invention.

Figure 2 is a vertical central section of the closed container taken online Hlll of Figure 1 and illustrating the contents of the container insection.

Figure 3 is an enlarged fragmentary detail section taken on line IHIH ofFigure 1.

Figure 4 is a fragmentary sectional view of a rolled edge cup seated ina deflecting mechanism whereby the improved method is adapted to beperformed.

As shown on the drawings:

The reference numeral 1 indicates a conical paper container or cup, theupper margin or edge of which is deflected or curved to provide a rolleddrinking edge for rounded rim 2 permitting a. cap 3 to be inserted intothe upper open end of the cup above the contents 4 of the cup. The cap 3is provided with an upwardly directed flange 5 which is inclined toflatly scat against the inner face of the cup 1 above the contents 4.

For the purpose of holding the flanged cap locked in a seated positionwithin the cup, an improved method has been provided whereby the cap maybe held in place without destroying the outwardly rolled drinking edgeof the cup. The method consists of seating a filled cup 1 in a holder orsocket 6 provided with a beveled ring 7 disposed to the inside of a stopshoulder 8. The cup 1 is thus adapted to be seated in the holder 6 withthe rolled edge projecting above the beveled ring 7. The cup 1 may befilled with a quantity of ice cream or thelike either be fore or afterit is seated in the holder 6 after which a flanged cap 3 is seatedtherein with the beveled flange 5 thereof flatly contacting lldountedabove the holder 6 and operable by any suitable means is a slidableplunger rod 9 provided with a shank 10 on the lower end of which a capretaining or plunger head 11 is secured. Engaged over the plunger head11 is a hood 12, the lower edge of which is adapted to seat against thestop shoulder 8 when the plunger head is in its lowermost positionseated against the upper surface of the cap 3 to securely hold the capin position during a cap riin notching operation whereby the flanged cap.is locked within the cup. Slidably mounted within the hood above theplunger head 11 and surrounding the plunger shank 10 is a crimping diepl te 13, the rim let of which is directed down ardly and is providedwith a plurality of ecu distantly spaced deflecting teeth 15. i thepresent instance six teeth are proi 1 ed on the rim of the crimping dieplate 13 nut, of course. it will be understood that any other suitablenumber of teeth desired may be provided on the rim of the criinper dieplate. Attached to the crimper die plate 13 are pair of posts 16 tofacilitate operation of the criinper die plate within the hood 12 afterthe plunger head 11 has been lowered. into its lowermost position asillustrated in 'gnre 4- with a. plunger hood seated upon the stopshoulder 59 of the holder 13.

-llVith a filled cup seated in position within the holder 6 and havinga, flanged cap en" gaged therein above the contents 4., the plunger head11 and the hood 12 are first lowered to perrnit the plunger head ii. topush the cap 8 a predetermined distance into the cup 1. T he die plate18 is now operated by means of the posts 16 to cause the die plate 13 tomove downwardly within the hood 12 cansing the teeth 15 to engage therolled edge 2 of the cup at spaced intervals to inwardly deflectportions of the rolled edge to form retaining lugs 0r teeth 17 whichproject over the upper edge of the flange 5 of the cap 3 thereby servingto lock the cap in seated position within the cup without mutilating ordestroying the rolled edge 2. lit will thus be noted that portions ofthe rim 2 are left between the lugs or teeth 17 sufficient to afiordconvenient rounded drinking edges for drinking the contents of a cupwhen a liquid is contained therein and the cap has been removed.

I am aware that numerous details of construction may be varied through awide range without departing from the principles of this invention, andI therefore do not purpose limiting the patent granted hereon, otherwisethan necessitated by the prior art.

I claim as my invention:

1. method of securing a flanged cap within a container provided with arolled drinking edge, said method consisting of first inserting aflanged cap in the container above the contents thereof and thenindenting the rolled edge of the cup at spaced intervals to adordretaining projections engaging over the flange of the cap to hold thecap loclred in position within the container.

2. The method of capping a rolled edged paper container consisting ofdepositing a cap within the container and then depressin'g portions ofthe rolled edge over the cap edge leaving rolled drinkin segmentsbetween the depressions.

3 The method of securing a cap within rolled edged paper container saidmethod consistin ojlfi indenting portions oi the rolled edge to formretaining projections for engaging over the edge of the cap to hold thecap in place.

a The method of securing a ilai'iged cap in container having its riniportion coop era ing with the flange of the cap extended )IlCl saidflange which consists in providthe edge of said rini portion with apinhty of indentations extending over the edge e the flange andcooperating with said flange hold the cap in place in the container. intestimony whereof I have hereunto subscribed my name.

BfiilftBlEitl.

